Cedar River Flooding Information
USGS gage data, map, and alert phases, and recent high flows

USGS Gage Name	Time, Date	Stage (feet)	Flow (c.f.s.)	Flow Change (c.f.s./hr)
Cedar River near Landsburg, WA (external link)	12:00 PM, 5/9	1.57	500	+5
Cedar River at Renton, WA (external link)	12:15 PM, 5/9	8.03	458	-9
Notes: The next request for USGS data is 2 minutes, 24 seconds from when this page was loaded. King County provides funding to the United States Geological Survey to support the operation and maintenance of river and stream gages and related systems.

Flood Phase Information
Phase	Flow at Cedar River gage near Landsburg	Description	Condition
1	1,000 c.f.s.	Internal Alert
2	2,800 c.f.s.	Minor Flooding	Jones Rd near 156th SE may overtop.
3	3,500 c.f.s.	Moderate Flooding	Lower Dorre Don and Byers Rd may overtop.
4	4,200 c.f.s.	Extreme Flooding	Some residential areas may experience dangerous high flows and home flooding. Renton Airport experiences flooding. SR 169 may overtop and close.

Recent High Flow Data
High Flow Event	Cedar River near Landsburg	Cedar River near Renton
November 7, 2006 Provisional Data	4,670 c.f.s.	6,090 c.f.s.
February, 1996	5,860 c.f.s.	7,520 c.f.s.
November, 1995	6,580 c.f.s.	7,650 c.f.s.
November, 1990	10,800 c.f.s.	10,600 c.f.s.

The U.S. Army Corps of Engineers also provides access to the provisional gage data:

Cedar River near Landsburg (external link)
Cedar River near Renton (external link)

Other Flood-related Information

» Return to the The Flood Warning System Page
» Visit King County Flooding Topics

For questions about the Flood Warning System site, please contact Ken Zweig, River and Floodplain Management Unit.

For questions about the Water and Land Resources Website, please contact Fred Bentler, webmaster.

Updated: May. 9, 2008, 12:15 PM